<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区 -->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="" />
      </div>
      <!-- 表单区 -->
      <el-form
        ref="loginRef"
        :model="form"
        :rules="rules"
        label-width="0px"
        class="login_form"
      >
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input
            v-model="form.username"
            prefix-icon="iconfont icon-user"
          ></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input
            v-model="form.password"
            prefix-icon="iconfont icon-3702mima"
            type="password"
          ></el-input>
        </el-form-item>
        <!-- button按钮 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="submitLogin">登录</el-button>
          <el-button type="info" @click="resetLogin">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 表单数据实时更新
      form: {
        username: 'admin',
        password: '123456',
      },
      // 表单验证规则
      rules: {
        // 用户名
        username: [
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          { min: 3, max: 6, message: '长度在 3 到 6 个字符', trigger: 'blur' },
        ],
        // 密码
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 3, max: 6, message: '长度在 3 到 6 个字符', trigger: 'blur' },
        ],
      },
    }
  },
  methods: {
    // 登录
    submitLogin() {
      this.$refs.loginRef.validate(async (data) => {
        if (!data) return
        const { data: res } = await this.$http.post('login', this.form)
        console.log(res)
        if (res.meta.status != 200) return this.$message.error('登录失败')
        this.$message.success('登录成功')
        // 保存token
        window.sessionStorage.setItem('token', res.data.token)
        // 跳转后台主页
        this.$router.push('/home')
      })
    },
    // 重置登录表单
    resetLogin() {
      this.$refs.loginRef.resetFields()
      // console.log(this);
    },
  },
}
</script>

<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
  position: relative;
}
.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.avatar_box {
  height: 130px;
  width: 130px;
  background-color: #fff;
  border: 1px solid #eee;
  border-radius: 50%;
  padding: 10px;
  box-shadow: 0 0 10px #ddd;
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  img {
    width: 100%;
    height: 100%;
    background-color: #eee;
    border-radius: 50%;
  }
}
.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
.btns {
  display: flex;
  justify-content: flex-end;
}
</style>
